The chiral vicinal diamine moiety is “privileged” and is widely found in catalysts and bio-active compounds. A series of seven chiral vicinal diamines with heterocyclic substituents have been synthesized with great enantiospecificity via the resonance assisted hydrogen bond driven diaza-Cope rearrangement reaction using 1,2-bis(2-hydroxyphenyl)-1,2-diaminoethane and heterocyclic aldehydes as starting materials.
This thesis will also discuss the development of a new guanidine-based chiral shift rea-gent for determining the enantiopurity and the absolute configuration of α-amino acids by proton nuclear magnetic resonance (1H NMR) spectroscopy. The chiral shift reagent is easily synthesized from the commercially-available 1,2-diphenyl-1,2-diaminoethane. This method is advantageous over many previously described procedures for determining amino acid enantiopurity as it does not require prior derivatization of the analyte.
Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:OTU.1807/25842 |
Date | 12 January 2011 |
Creators | Mui, Leo |
Contributors | Chin, Jik |
Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
Language | en_ca |
Detected Language | English |
Type | Thesis |
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